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Finding the Fourth Proportional to 626,795.84, 865,690.44 and 422,494.40

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Solution

The fourth proportional to 626,795.84, 865,690.44 and 422,494.40 is: 583,522.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,795.84 : 865,690.44 = 422,494.40 : x
  2. Step 2: Convert to fraction form
    626,795.84/865,690.44 = 422,494.40/x
  3. Step 3: Cross multiply
    626,795.84x = 865,690.44 × 422,494.40
  4. Step 4: Simplify right side
    626,795.84x = 365,749,363,033.54
  5. Step 5: Solve for x
    x = 365,749,363,033.54/626,795.84
  6. Step 6: Final answer
    x = 583,522.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.